删除SQL Server数据库中的所有数据

我怎样才能删除我的数据库的所有表中的所有logging？ 我可以使用一个SQL命令吗？或者我需要每个表的一个SQL命令？

SQLMenace的解决scheme为我工作，稍微调整了如何删除数据 – DELETE FROM而不是TRUNCATE 。 

 -- disable referential integrity EXEC sp_MSForEachTable 'ALTER TABLE ? NOCHECK CONSTRAINT ALL' GO EXEC sp_MSForEachTable 'DELETE FROM ?' GO -- enable referential integrity again EXEC sp_MSForEachTable 'ALTER TABLE ? WITH CHECK CHECK CONSTRAINT ALL' GO

通常我只会使用未logging的proc sp_MSForEachTable 

 -- disable referential integrity EXEC sp_MSForEachTable 'ALTER TABLE ? NOCHECK CONSTRAINT ALL' GO EXEC sp_MSForEachTable 'TRUNCATE TABLE ?' GO -- enable referential integrity again EXEC sp_MSForEachTable 'ALTER TABLE ? CHECK CONSTRAINT ALL' GO

另请参阅： 删除数据库中的所有数据（当您有FK时）

我知道这已经很晚了，但是我同意AlexKuznetsov的build议来编写数据库脚本，而不是从表格中清除数据。 如果TRUNCATE解决scheme无法正常工作，并且您碰巧拥有大量数据，那么发出（logging）的DELETE语句可能需要很长时间，而您将留下未被重新调用的标识符（即INSERT语句具有IDENTITY列的表将会得到您的ID为50000，而不是1的ID）。

要脚本化整个数据库，在SSMS中，右键单击数据库，然后selectTASKS – > Generate scripts ：

在这里输入图像说明

单击“ Next跳过向导打开屏幕，然后select要编写脚本的对象：

在这里输入图像说明

在“ Set scripting options屏幕中，您可以为脚本select设置，例如是为所有对象生成1个脚本，还是为各个对象分别创build脚本，以及是以Unicode还是ANSI保存文件：

在这里输入图像说明

该向导将显示一个摘要，您可以使用该摘要validation所有内容，然后单击“完成”closures该摘要。 

 /* Drop all non-system stored procs */ DECLARE @name VARCHAR(128) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P' AND category = 0 ORDER BY [name]) WHILE @name is not null BEGIN SELECT @SQL = 'DROP PROCEDURE [dbo].[' + RTRIM(@name) +']' EXEC (@SQL) PRINT 'Dropped Procedure: ' + @name SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P' AND category = 0 AND [name] > @name ORDER BY [name]) END GO /* Drop all views */ DECLARE @name VARCHAR(128) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'V' AND category = 0 ORDER BY [name]) WHILE @name IS NOT NULL BEGIN SELECT @SQL = 'DROP VIEW [dbo].[' + RTRIM(@name) +']' EXEC (@SQL) PRINT 'Dropped View: ' + @name SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'V' AND category = 0 AND [name] > @name ORDER BY [name]) END GO /* Drop all functions */ DECLARE @name VARCHAR(128) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] IN (N'FN', N'IF', N'TF', N'FS', N'FT') AND category = 0 ORDER BY [name]) WHILE @name IS NOT NULL BEGIN SELECT @SQL = 'DROP FUNCTION [dbo].[' + RTRIM(@name) +']' EXEC (@SQL) PRINT 'Dropped Function: ' + @name SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] IN (N'FN', N'IF', N'TF', N'FS', N'FT') AND category = 0 AND [name] > @name ORDER BY [name]) END GO /* Drop all Foreign Key constraints */ DECLARE @name VARCHAR(128) DECLARE @constraint VARCHAR(254) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' ORDER BY TABLE_NAME) WHILE @name is not null BEGIN SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME) WHILE @constraint IS NOT NULL BEGIN SELECT @SQL = 'ALTER TABLE [dbo].[' + RTRIM(@name) +'] DROP CONSTRAINT [' + RTRIM(@constraint) +']' EXEC (@SQL) PRINT 'Dropped FK Constraint: ' + @constraint + ' on ' + @name SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' AND CONSTRAINT_NAME <> @constraint AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME) END SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' ORDER BY TABLE_NAME) END GO /* Drop all Primary Key constraints */ DECLARE @name VARCHAR(128) DECLARE @constraint VARCHAR(254) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' ORDER BY TABLE_NAME) WHILE @name IS NOT NULL BEGIN SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME) WHILE @constraint is not null BEGIN SELECT @SQL = 'ALTER TABLE [dbo].[' + RTRIM(@name) +'] DROP CONSTRAINT [' + RTRIM(@constraint)+']' EXEC (@SQL) PRINT 'Dropped PK Constraint: ' + @constraint + ' on ' + @name SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' AND CONSTRAINT_NAME <> @constraint AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME) END SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' ORDER BY TABLE_NAME) END GO /* Drop all tables */ DECLARE @name VARCHAR(128) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'U' AND category = 0 ORDER BY [name]) WHILE @name IS NOT NULL BEGIN SELECT @SQL = 'DROP TABLE [dbo].[' + RTRIM(@name) +']' EXEC (@SQL) PRINT 'Dropped Table: ' + @name SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'U' AND category = 0 AND [name] > @name ORDER BY [name]) END GO

编写数据库中的所有对象的脚本通常要快得多，并创build一个空的表单，以从表中删除或截断表。

  1. 首先，你必须禁用所有的触发器： 

     sp_msforeachtable 'ALTER TABLE ? DISABLE TRIGGER all';

  2. 运行这个脚本:(取自这篇文章谢谢@SQLMenace） 

     SET NOCOUNT ON GO SELECT 'USE [' + db_name() +']'; ;WITH a AS ( SELECT 0 AS lvl, t.object_id AS tblID FROM sys.TABLES t WHERE t.is_ms_shipped = 0 AND t.object_id NOT IN (SELECT f.referenced_object_id FROM sys.foreign_keys f) UNION ALL SELECT a.lvl + 1 AS lvl, f.referenced_object_id AS tblId FROM a INNER JOIN sys.foreign_keys f ON a.tblId = f.parent_object_id AND a.tblID <> f.referenced_object_id ) SELECT 'Delete from ['+ object_schema_name(tblID) + '].[' + object_name(tblId) + ']' FROM a GROUP BY tblId ORDER BY MAX(lvl),1

这个脚本将以正确的顺序产生DELETE语句。 从引用的表开始，然后引用它们

  1. 复制DELETE FROM语句并运行一次

  2. 启用触发器 

     sp_msforeachtable 'ALTER TABLE ? ENABLE TRIGGER all'

  3. 提交更改： 

     begin transaction commit;

在我用来从SQL Server数据库中删除所有数据的脚本下面 

 ------------------------------------------------------------ /* Use database */ ------------------------------------------------------------- use somedatabase; GO ------------------------------------------------------------------ /* Script to delete an repopulate the base [init database] */ ------------------------------------------------------------------ ------------------------------------------------------------- /* Procedure delete all constraints */ ------------------------------------------------------------- IF EXISTS (SELECT name FROM sysobjects WHERE name = 'sp_DeleteAllConstraints' AND type = 'P') DROP PROCEDURE dbo.sp_DeleteAllConstraints GO CREATE PROCEDURE sp_DeleteAllConstraints AS EXEC sp_MSForEachTable 'ALTER TABLE ? NOCHECK CONSTRAINT ALL' EXEC sp_MSForEachTable 'ALTER TABLE ? DISABLE TRIGGER ALL' GO ----------------------------------------------------- /* Procedure delete all data from the database */ ----------------------------------------------------- IF EXISTS (SELECT name FROM sysobjects WHERE name = 'sp_DeleteAllData' AND type = 'P') DROP PROCEDURE dbo.sp_DeleteAllData GO CREATE PROCEDURE sp_DeleteAllData AS EXEC sp_MSForEachTable 'DELETE FROM ?' GO ----------------------------------------------- /* Procedure enable all constraints */ ----------------------------------------------- IF EXISTS (SELECT name FROM sysobjects WHERE name = 'sp_EnableAllConstraints' AND type = 'P') DROP PROCEDURE dbo.sp_EnableAllConstraints GO -- .... -- .... -- .... 
 EXEC sp_MSForEachTable 'ALTER TABLE ? NOCHECK CONSTRAINT ALL' EXEC sp_MSForEachTable 'ALTER TABLE ? DISABLE TRIGGER ALL' EXEC sp_MSForEachTable 'DELETE FROM ?' EXEC sp_MSForEachTable 'ALTER TABLE ? CHECK CONSTRAINT ALL' EXEC sp_MSForEachTable 'ALTER TABLE ? ENABLE TRIGGER ALL' EXEC sp_MSFOREACHTABLE 'SELECT * FROM ?' GO
Interesting Posts